function [xo,yo] = growlin(x,y,n);
%
% Function to use linear interpolation to increase
% the number of points in a table to n+1.

% Generate x coordinates for new table
xo = linspace(x(1),x(end),n+1)';

% Loop over these points to find corresponding y. Skip the 
% first and last points in the table because these are the 
% same as the original data
yo(1) = y(1);
yo(n+1) = y(end);
for i = 2:n
% Locate position of xo(i) in original table
    loc = find(x < xo(i));
    loc = loc(end);
% Get points on either side of xo(i)    
    x1 = x(loc);
    x2 = x(loc+1);
    y1 = y(loc);
    y2 = y(loc+1);
% Slope and y-intercept
    m = (y2-y1)/(x2-x1);
    b = y1-m*x1;
% Use line to get yo(i)
    yo(i) = m*xo(i)+b;
end
yo = yo(:);